The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Dec. 11, 2023
Kioxia Corporation, Tokyo, JP;
Hajime Matsui, Yokohama Kanagawa, JP;
KIOXIA CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a controller includes a CPU and an accelerator which performs signature verification using a first signature of a first scheme. When updating first firmware to second firmware to which a second signature of a second scheme is assigned, the controller performs the signature verification of the second firmware based on the second signature assigned to the second firmware by the CPU, generates the first signature for the second firmware, and replaces the second signature assigned to the second firmware with the generated first digital signature. When booting the second firmware, the controller performs the signature verification of the second firmware based on the first signature assigned to the second firmware by the accelerator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile